Zona a traffico limitato
Zona a traffico limitato (ZTL) (lit. Limited Traffic Zone) is a restricted traffic area in Italy. There are around 200 schemes that are enforced with cameras, plus 100 low emission zones. They help protect historic city centres from excessive traffic, which would otherwise make the city less attractive. The low emission zones also help reduce pollution, particularly in the north Italian regions which have very high concentrations of fine particulates (PM10).
Foreigners intending to drive in Italy can find information about the schemes at the multilingual website www.urbanaccessregulations.eu.
In 2009 Florence issued an average of 1,253 traffic tickets a day, for an annual revenue of 52 million euro. The fines tripled over the previous ten year period. In the same year revenues from traffic fines in Milan were 81 million euro. About 53% of these fines come from ZTL violations. 
- "Too much of a bad thing". The Florentine. February 12, 2009. Retrieved February 20, 2021.